The problem is there is no single factor.
1) I am getting older so likely now need more light.
2) The eye is more receptive to some colours, I was told we see better with Orange light that is why Son lamps worked so well, however that may be a myth.
3) The higher the colour temperature to brighter we tend to think it is, even when lumen wise it is not.
4) Flashing a light fast we tend to see more than same average watts without flashing, but lumen is the same.
5) The base of CFL and LED means the angle of spread has changed.
6) The ceilings don't collect dust as much as less air circulated around the lamps due to lower heat.
So 1979 when I moved into house main room 2 x 100W tungsten, changed to 6 x 40W to 60W tungsten depended what was in stock, then 11W CFL, fittings changed to SES then 10 x 5W CFL (too dim really), swapped to 10 x 3W LED, seemed brighter but found needed a standard lamp to read so not 10 x 5W LED so ¼ the original watts. Main difference is not swapping a bulb every other week.
Since using gas heating they do save money, however as to saving energy not so sure, I have found the idea of changing the temperature of a room through the day simply does not work. It takes too long to heat and cool a room, over night so 8 hours heating totally off heart of winter room temp drops 21°C to 17°C i.e. 0.5°C per hour when outside temperature below freezing. Heating up the room also slow because of the anti-hysteresis software, so 17°C start set to 20°C and looking at around 3 hours, set to 24°C and up to 20°C within the hour, but then likely to over shoot, so raising temperature 1°C per hour.
So temperature wanted 8 am to 10 am 20°C as time I get up and shower so undressed, 10 am to 6 pm 18°C as working so don't need it too warm, 6 pm to 11 pm 22°C as sitting doing nothing just watching TV and 11 pm to 8 am 16°C as in bed.
You simply can't heat and cool quick enough to get those temperatures, however the inferred from the tungsten bulb was near instant, so as an integrated system it worked well, however I don't want to be changing bulbs every two weeks, so sticking with LED.
It seems bulbs can last
reading this report it seems bulbs can last over a 100 years, however not tungsten it was carbon-filament. And now giving out around 4W of light but was designed to give out 60W of light. OK this is getting silly as 4W of light is rather low, however bulbs have run for many years, but as to how often switched off not easy to say.
I know I have found strings of rough service lights that have been installed for years down tunnels. but my garage is only place left using BA22d bulbs, and I must have around 50 bulbs left, lights switched on average of 1 hour a week, will not run out in my life time.